Feature generation/1.19-0.3

In 1.19, due to the complete replacement of the BiomeLoadingEvent with Biome Modifiers, ore generation in particular has been reworked. There are also balancing changes compared to 1.18.2. For example, in 1.19-0.3 versions, Bauxite is typically more common than Cinnabar.

Technical background

1.19 continued to revamp how features work, increasingly making the system more dynamic and data-driven.

Biome modifiers

Biome Modifiers are a Forge-specific technology that is data-driven and can be used to circumvent registering PlacedFeatures. Because these are data-driven, they cannot be defined programmatically (aside from data generation, "datagen") as they are built into the JAR file as JSON files. Therefore, they are not configurable from the configuration toml file. To modify these, you must use a mod that can modify Biome Modifiers or datapack-style JSONs.

For 1.19 you can see the specific biome modifiers that add features here.

Biome data changes

The BiomeCategory enum has been removed in 1.19. While not surprising, it did mean that a lot of the biome filtering/selection code would have to be reworked when porting from 1.18. Tags are now used heavily to determine the type of biome that a feature should appear in. This should also improve the integration of features into modded biomes, assuming that the modded biomes are tagged correctly.

Voluminous Energy uses the aforementioned Biome Modifiers with a custom one called VEAndedMultiBiomeModifier, which has its own system for reading provided biome tags (whitelisted and blacklisted) and comparing those to a biome when it's loaded to determine whether or not a feature should be added to the biome.

Ore blob features

As per vanilla/Mojmaps terminology, an ore "blob" is a clustering of an ore block combined into a feature for world generation. Veins are not features and are part of the chunk generator and were introduced in 1.17.1.

Like vanilla, Voluminous Energy starting with 1.19 releases use multiple features for ores to spawn in ore blobs into the world. This allows the ore blobs to be more common in certain areas and provides the mod developers with finer grain control compared to broad single entries. For example, the same chance level for a smaller anchored range will appear to the player as more common as it's spread out across fewer Y-levels regardless of being spawned uniformly or triangularly.

Below is a table summary of Biome Modifier entries to add Voluminous Energy ore blob features into the world.

Biome modifiers

JSON entry name	Whitelisted Biome tag	Blacklisted Biome tag	Triangular placement	Count	Bottom Anchor	Top Anchor	Rarity
bauxite_ore_beach	minecraft:is_beach	None	Yes	8	62	92	0
bauxite_ore_mountain_high	minecraft:is_mountain	forge:is_snowy	Yes	9	208	256	0
bauxite_ore_mountain_medium	minecraft:is_mountain	forge:is_snowy	Yes	6	144	196	0
bauxite_ore_mountain_low	minecraft:is_mountain	forge:is_snowy	Yes	10	96	140	0
bauxite_ore_overworld	minecraft:is_overworld	None	No	10	10	60	0
cinnabar_ore_beach	minecraft:is_beach	None	Yes	2	62	92	1
cinnabar_ore_mountains	minecraft:is_mountain	None	Yes	7	102	292	0
cinnabar_ore_overworld	minecraft:is_overworld	None	No	9	-64	320	0
eighzo_ore_end	minecraft:is_end	None	No	3	10	36	0
galena_ore_overworld	minecraft:is_overworld	None	No	3	-48	12	0
rutile_ore_overworld	minecraft:is_overworld	None	No	3	-64	-32	0
saltpeter_ore_badlands	minecraft:is_badlands	minecraft:is_beach forge:is_water	Yes	1	55	77	10
saltpeter_ore_hot_sandy	forge:is_hot forge:is_sandy	minecraft:is_beach forge:is_water	No	4	55	320	0

Feature configurations

Ore blob configuration data

Ore	Targets	Size	Discard
Saltpeter	forge:ore_bearing_ground/sand/colorless_sand forge:ore_bearing_ground/sand/red_sand	33	0
Bauxite	minecraft:stone_ore_replaceables minecraft:deepslate_ore_replaceables	8
Cinnabar		6
Galena
Rutile		4	0.75
Eighzo	forge:ore_bearing_ground/end_stone		0.5

Ore deposit features

Ore deposits are substantial groupings of a resource. The centre of an ore deposit will contain no stone and contain the raw block of the resource. The outside of the deposit usually contains the regular ore block as the world transitions to stone. If exposed to air, the ore blocks may not spawn but the raw blocks will.

Biome modifiers

JSON entry name	Whitelisted Biome tag	Blacklisted Biome tag	Triangular placement	Count	Bottom Anchor	Top Anchor	Rarity
bauxite_deposit_overworld	minecraft:is_overworld	None	Yes	1	10	60	64
cinnabar_deposit_overworld	minecraft:is_overworld	None	Yes	1	-64	320	56
copper_deposit_overworld	minecraft:is_overworld	None	Yes	1	-16	112	26
eighzo_deposit_end	minecraft:is_end	None	Yes	1	10	36	192
galena_deposit_overworld	minecraft:is_overworld	None	Yes	1	-48	12	78
gold_deposit_overworld	minecraft:is_overworld	None	Yes	1	-64	-48	112
iron_deposit_overworld	minecraft:is_overworld	None	Yes	1	-64	74	56

Crude Oil features

JSON entry name	Configured Feature	Whitelisted Biome tag	Blacklisted Biome tag	Triangular placement	Count	Bottom Anchor	Top Anchor	Rarity	Stepping
oil_geyser_overworld	voluminousenergy:oil_geyser	minecraft:is_overworld	None	No	1	-64	320	144	Fluid Springs
surface_oil_lake_overworld	voluminousenergy:surface_oil_lake	minecraft:is_overworld	None	No	1	-64	320	208	Lakes
underground_oil_lakes_overworld	voluminousenergy:underground_oil_lake	minecraft:is_overworld	None	No	1	-64	320	5	Lakes

Miscellaneous features

JSON entry name	Configured Feature	Whitelisted Biome tag	Blacklisted Biome tag	Triangular placement	Count	Bottom Anchor	Top Anchor	Rarity	Stepping
rice_crop_overworld	voluminousenergy:rice_crop	minecraft:is_overworld	minecraft:is_ocean	No	4	55	320	0	Vegetal Decoration